YiBook vs EPUB Reader
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
YiBook
An elegant ebook reader supporting EPUB and TXT formats. Easily import books from various sources, organize your library with categories, and customize your reading experience with notes, bookmarks, and custom fonts. The free version supports up to five books.
- EPUB/TXT book reading
- Import books from OPDS, web, WiFi, iTunes
- Add bookmarks, underlines, and notes
- Organize books by category
- Import custom fonts
- Customizable typesetting
- Track reading time
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YiBook is a fully functional and elegant ebook reader. Features: • EPub/Txt books reading. • Get books from open resource (OPDS). • Get books from web page (Dropbox, Google, etc.). • Transfer books through WiFi or iTunes. • Add bookmarks, underlines and notes while reading. • Category for books, easily manage tons of books. • Setting password to lock category. • Import custom fonts. • Record reading time of each book. • Share books via mail or open it in other app. • Custom typeset for three classes, adjust quickly while reading. • Elegant way to look up the progress of reading - by pull up page. • Humanization design like "Tap Left to Turn Next Page". Note:YiBook FREE version allow to store 5 books. If you want to manage more books, you should buy the In-App Purchase for "YiBook Premium".
EPUB Reader
Customize your reading experience with extensive font and layout options. Effortlessly manage your library, track reading habits, and enjoy eye-care features. Sync your books across devices via cloud storage without proprietary lock-in.
- 200+ built-in fonts and custom font import
- Adjustable text and layout settings
- Smart dark mode with intelligent image inversion
- 20-20-20 eye health reminders
- Library management for 5,000+ books
- Cloud sync via iCloud, Dropbox, Google Drive, OneDrive
- Highlighting, notes, and bookmarking
- Reading progress tracking and goal setting
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EPUB, PDF, comics, and audiobooks in one native iOS reader. Fast, deeply customizable, and built to disappear so you can simply read. FOUR FORMATS, ONE SHELF Read EPUB 3 and PDF. Read CBZ and CBR comics and manga, with two-page spreads, double-tap zoom, and a reading direction you set per book. Listen to audiobooks with chapters, a sleep timer, Car Mode, and CarPlay. Or follow along with EPUB 3 narration, where the text highlights in time with the voice. READ ALOUD Any book can be read to you, by any Apple voice on your device or by natural neural voices in 31 languages that you download once and then run offline. The sentence highlights as it is spoken and the pages turn on their own, with speed presets, sentence skips, a sleep timer, and Lock Screen controls. Prepare a book in advance and keep listening with the screen off. TYPOGRAPHY YOU CONTROL 200+ fonts, or import your own. Tune size, weight, line and paragraph spacing, alignment, hyphenation, and separate margins for portrait and landscape. Save settings per book so a novel, a textbook, and poetry each look right. Build your own color themes and let them switch at sunset. Choose which buttons the reader toolbar shows and where a tap opens it, and give links their own color and style. Smart dark mode keeps images natural, and in-reader brightness, Line Focus, and eye-care break reminders protect your eyes. NO LOCK-IN, EVER Your books stay ordinary files in an ordinary folder, never a proprietary database. Point JustRead at any folder: on device, iCloud Drive, or one your cloud app syncs through Files. Import from a Calibre server or any OPDS catalog. Email a book to your Kindle or PocketBook. IN SYNC WITH YOUR E-READER Your reading position follows you to any e-reader running KOReader, a Kobo included, in both directions. Connect a self-hosted Grimmory server to browse and download its books, send books to it, and keep status, ratings, highlights, notes, and bookmarks in step both ways. A LIBRARY THAT SCALES Thousands of books with no lag, and a book opens in about a second. Instant search by title, author, or series. Automatic metadata and series detection, 11 sort modes, saved filters, collections, and tags. Edit any book's details by hand, description included. Spotlight opens any book from your home screen. HIGHLIGHTS, NOTES, BOOKMARKS Highlight, underline, and attach a note. Browse every highlight across your whole library in one place, share a quote as a card, or export to Markdown, PDF, or Readwise. YOUR READING, IN NUMBERS Daily goals, a yearly books goal, streaks, and milestone badges. An hourly heatmap shows when you read best. Monthly and yearly recaps, plus a story-style Reading Wrap that turns your year into cards worth sharing. AND THE REST Home screen and lock screen widgets. Dictionary and translation. Full-text search and a nested table of contents. iCloud sync, so you resume on the exact line on any device. Right-to-left and Japanese vertical text. A page curl, if you want one. Free for 14 days, then a subscription or a lifetime purchase, both with Family Sharing. Available in 21 languages. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://justread.app/en/privacy_policy
Screenshots
Verdict
The clearest difference is rating: EPUB Reader at 4.6 against YiBook's 3.2. EPUB Reader also leads on update cadence (every 5 days vs every 2 months) and review sentiment (83% vs 67%). YiBook's advantage is iOS requirement (8.0 vs 18.1). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. YiBook sells 1 one-off in-app purchase and EPUB Reader sells 7 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
EPUB Reader holds the better App Store score, 4.6 against 3.2. That said, the two scores are not equally well evidenced: EPUB Reader has 54 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 67% of YiBook's written reviews are positive against 83% of EPUB Reader's.
YiBook ships an update every 2 months, EPUB Reader every 5 days. The most recent releases landed on October 17, 2026 and October 25, 2026 respectively.
| Parameter | YiBook | EPUB Reader |
|---|---|---|
| Price | Free | Free |
| Rating | 3.2 (5 ratings) | 4.6 (54 ratings) — better |
| Positive reviews | 66.7% of reviews | 83.3% of reviews — better |
| Number of ratings | 5 | 54 — better |
| Update frequency | Every 2 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 8.0 — better | 18.1 |
| Further details — not scored | ||
| Size | 11 MB | 207 MB |
| Age rating | 4+ | 4+ |
| Developer | 振焯 陈 | PETR JAHODA |
Customer experience
YiBook
EPUB Reader
In-app purchases
YiBook
- YiBook Premium$2.99
EPUB Reader
- Monthly Premium14 Days trial$2.991 Month
- Monthly Premium$4.991 Month
- Yearly – Launch Price7 Days trial$12.491 Year
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- Yearly Premium14 Days trial$24.991 Year
- Yearly Premium$29.991 Year
- Lifetime – Launch Price$29.99
- Lifetime Premium$79.99









